| Message ID | 20221011212501.2661003-2-tanmay.shah@amd.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add Xilinx RPU subsystem support | expand |
On 11/10/2022 17:24, Tanmay Shah wrote: > Xilinx ZynqMP platform has dual-core ARM Cortex R5 Realtime Processing > Unit(RPU) subsystem. This patch adds dt-bindings for RPU subsystem > (cluster). > > Signed-off-by: Tanmay Shah <tanmay.shah@amd.com> > --- > > Changes in v10: > - rename example node to remoteproc > > Changes in v9: > - remove power-domains property description > - fix nitpicks in description of other properties > > Changes in v8: > - Add 'items:' for sram property > > Changes in v7: > - Add minItems in sram property > > Changes in v6: > - Add maxItems to sram and memory-region property > > Changes in v5: > - Add constraints of the possible values of xlnx,cluster-mode property > - fix description of power-domains property for r5 core > - Remove reg, address-cells and size-cells properties as it is not required > - Fix description of mboxes property > - Add description of each memory-region and remove old .txt binding link > reference in the description > > Changes in v4: > - Add memory-region, mboxes and mbox-names properties in example > > Changes in v3: > - None > > .../bindings/remoteproc/xlnx,r5f-rproc.yaml | 135 ++++++++++++++++++ > include/dt-bindings/power/xlnx-zynqmp-power.h | 6 + > 2 files changed, 141 insertions(+) > create mode 100644 Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml > > diff --git a/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml > new file mode 100644 > index 000000000000..8079b60b950e > --- /dev/null > +++ b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml The convention is to have filename matching the compatible, so: xlnx,zynqmp-r5fss.yaml > @@ -0,0 +1,135 @@ > +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/remoteproc/xlnx,r5f-rproc.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Xilinx R5F processor subsystem > + > +maintainers: > + - Ben Levinsky <ben.levinsky@amd.com> > + - Tanmay Shah <tanmay.shah@amd.com> > + > +description: | > + The Xilinx platforms include a pair of Cortex-R5F processors (RPU) for > + real-time processing based on the Cortex-R5F processor core from ARM. > + The Cortex-R5F processor implements the Arm v7-R architecture and includes a > + floating-point unit that implements the Arm VFPv3 instruction set. > + > +properties: > + compatible: > + const: xlnx,zynqmp-r5fss > + Best regards, Krzysztof
On 10/12/22 8:29 AM, Krzysztof Kozlowski wrote: > On 11/10/2022 17:24, Tanmay Shah wrote: >> Xilinx ZynqMP platform has dual-core ARM Cortex R5 Realtime Processing >> Unit(RPU) subsystem. This patch adds dt-bindings for RPU subsystem >> (cluster). >> >> Signed-off-by: Tanmay Shah <tanmay.shah@amd.com> >> --- >> >> Changes in v10: >> - rename example node to remoteproc >> >> Changes in v9: >> - remove power-domains property description >> - fix nitpicks in description of other properties >> >> Changes in v8: >> - Add 'items:' for sram property >> >> Changes in v7: >> - Add minItems in sram property >> >> Changes in v6: >> - Add maxItems to sram and memory-region property >> >> Changes in v5: >> - Add constraints of the possible values of xlnx,cluster-mode property >> - fix description of power-domains property for r5 core >> - Remove reg, address-cells and size-cells properties as it is not required >> - Fix description of mboxes property >> - Add description of each memory-region and remove old .txt binding link >> reference in the description >> >> Changes in v4: >> - Add memory-region, mboxes and mbox-names properties in example >> >> Changes in v3: >> - None >> >> .../bindings/remoteproc/xlnx,r5f-rproc.yaml | 135 ++++++++++++++++++ >> include/dt-bindings/power/xlnx-zynqmp-power.h | 6 + >> 2 files changed, 141 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml >> >> diff --git a/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml >> new file mode 100644 >> index 000000000000..8079b60b950e >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml > The convention is to have filename matching the compatible, so: > xlnx,zynqmp-r5fss.yaml > Thanks for reviews. Sure I will rename file in next revision. >> @@ -0,0 +1,135 @@ >> +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/remoteproc/xlnx,r5f-rproc.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Xilinx R5F processor subsystem >> + >> +maintainers: >> + - Ben Levinsky <ben.levinsky@amd.com> >> + - Tanmay Shah <tanmay.shah@amd.com> >> + >> +description: | >> + The Xilinx platforms include a pair of Cortex-R5F processors (RPU) for >> + real-time processing based on the Cortex-R5F processor core from ARM. >> + The Cortex-R5F processor implements the Arm v7-R architecture and includes a >> + floating-point unit that implements the Arm VFPv3 instruction set. >> + >> +properties: >> + compatible: >> + const: xlnx,zynqmp-r5fss >> + > > > Best regards, > Krzysztof >
diff --git a/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml new file mode 100644 index 000000000000..8079b60b950e --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml @@ -0,0 +1,135 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/xlnx,r5f-rproc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx R5F processor subsystem + +maintainers: + - Ben Levinsky <ben.levinsky@amd.com> + - Tanmay Shah <tanmay.shah@amd.com> + +description: | + The Xilinx platforms include a pair of Cortex-R5F processors (RPU) for + real-time processing based on the Cortex-R5F processor core from ARM. + The Cortex-R5F processor implements the Arm v7-R architecture and includes a + floating-point unit that implements the Arm VFPv3 instruction set. + +properties: + compatible: + const: xlnx,zynqmp-r5fss + + xlnx,cluster-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2] + description: | + The RPU MPCore can operate in split mode (Dual-processor performance), Safety + lock-step mode(Both RPU cores execute the same code in lock-step, + clock-for-clock) or Single CPU mode (RPU core 0 is held in reset while + core 1 runs normally). The processor does not support dynamic configuration. + Switching between modes is only permitted immediately after a processor reset. + If set to 1 then lockstep mode and if 0 then split mode. + If set to 2 then single CPU mode. When not defined, default will be lockstep mode. + In summary, + 0: split mode + 1: lockstep mode (default) + 2: single cpu mode + +patternProperties: + "^r5f-[a-f0-9]+$": + type: object + description: | + The RPU is located in the Low Power Domain of the Processor Subsystem. + Each processor includes separate L1 instruction and data caches and + tightly coupled memories (TCM). System memory is cacheable, but the TCM + memory space is non-cacheable. + + Each RPU contains one 64KB memory and two 32KB memories that + are accessed via the TCM A and B port interfaces, for a total of 128KB + per processor. In lock-step mode, the processor has access to 256KB of + TCM memory. + + properties: + compatible: + const: xlnx,zynqmp-r5f + + power-domains: + maxItems: 1 + + mboxes: + minItems: 1 + items: + - description: mailbox channel to send data to RPU + - description: mailbox channel to receive data from RPU + + mbox-names: + minItems: 1 + items: + - const: tx + - const: rx + + sram: + $ref: /schemas/types.yaml#/definitions/phandle-array + minItems: 1 + maxItems: 8 + items: + maxItems: 1 + description: | + phandles to one or more reserved on-chip SRAM regions. Other than TCM, + the RPU can execute instructions and access data from the OCM memory, + the main DDR memory, and other system memories. + + The regions should be defined as child nodes of the respective SRAM + node, and should be defined as per the generic bindings in + Documentation/devicetree/bindings/sram/sram.yaml + + memory-region: + description: | + List of phandles to the reserved memory regions associated with the + remoteproc device. This is variable and describes the memories shared with + the remote processor (e.g. remoteproc firmware and carveouts, rpmsg + vrings, ...). This reserved memory region will be allocated in DDR memory. + minItems: 1 + maxItems: 8 + items: + - description: region used for RPU firmware image section + - description: vdev buffer + - description: vring0 + - description: vring1 + additionalItems: true + + required: + - compatible + - power-domains + + unevaluatedProperties: false + +required: + - compatible + +additionalProperties: false + +examples: + - | + remoteproc { + compatible = "xlnx,zynqmp-r5fss"; + xlnx,cluster-mode = <1>; + + r5f-0 { + compatible = "xlnx,zynqmp-r5f"; + power-domains = <&zynqmp_firmware 0x7>; + memory-region = <&rproc_0_fw_image>, <&rpu0vdev0buffer>, <&rpu0vdev0vring0>, <&rpu0vdev0vring1>; + mboxes = <&ipi_mailbox_rpu0 0>, <&ipi_mailbox_rpu0 1>; + mbox-names = "tx", "rx"; + }; + + r5f-1 { + compatible = "xlnx,zynqmp-r5f"; + power-domains = <&zynqmp_firmware 0x8>; + memory-region = <&rproc_1_fw_image>, <&rpu1vdev0buffer>, <&rpu1vdev0vring0>, <&rpu1vdev0vring1>; + mboxes = <&ipi_mailbox_rpu1 0>, <&ipi_mailbox_rpu1 1>; + mbox-names = "tx", "rx"; + }; + }; +... diff --git a/include/dt-bindings/power/xlnx-zynqmp-power.h b/include/dt-bindings/power/xlnx-zynqmp-power.h index 0d9a412fd5e0..618024cbb20d 100644 --- a/include/dt-bindings/power/xlnx-zynqmp-power.h +++ b/include/dt-bindings/power/xlnx-zynqmp-power.h @@ -6,6 +6,12 @@ #ifndef _DT_BINDINGS_ZYNQMP_POWER_H #define _DT_BINDINGS_ZYNQMP_POWER_H +#define PD_RPU_0 7 +#define PD_RPU_1 8 +#define PD_R5_0_ATCM 15 +#define PD_R5_0_BTCM 16 +#define PD_R5_1_ATCM 17 +#define PD_R5_1_BTCM 18 #define PD_USB_0 22 #define PD_USB_1 23 #define PD_TTC_0 24
Xilinx ZynqMP platform has dual-core ARM Cortex R5 Realtime Processing Unit(RPU) subsystem. This patch adds dt-bindings for RPU subsystem (cluster). Signed-off-by: Tanmay Shah <tanmay.shah@amd.com> --- Changes in v10: - rename example node to remoteproc Changes in v9: - remove power-domains property description - fix nitpicks in description of other properties Changes in v8: - Add 'items:' for sram property Changes in v7: - Add minItems in sram property Changes in v6: - Add maxItems to sram and memory-region property Changes in v5: - Add constraints of the possible values of xlnx,cluster-mode property - fix description of power-domains property for r5 core - Remove reg, address-cells and size-cells properties as it is not required - Fix description of mboxes property - Add description of each memory-region and remove old .txt binding link reference in the description Changes in v4: - Add memory-region, mboxes and mbox-names properties in example Changes in v3: - None .../bindings/remoteproc/xlnx,r5f-rproc.yaml | 135 ++++++++++++++++++ include/dt-bindings/power/xlnx-zynqmp-power.h | 6 + 2 files changed, 141 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml